Kodi hydroxypropyl methylcellulose imachokera kuti?

Hydroxypropyl methylcellulose (HPMC) ndi polima opangidwa kuchokera ku cellulose, yomwe ndi polima yochitika mwachilengedwe yomwe imapanga makoma a maselo. HPMC imapangidwa ndi kusintha kwa cellulose kudzera munjira yotchedwa etherification.

Mu etherification, cellulose amathandizidwa ndi kusakaniza kwa propylene oxide ndi methyl chloride pansi pamikhalidwe yoyendetsedwa kuti apange hydroxypropyl cellulose (HPC). HPC imasinthidwanso pochiza ndi methanol ndi hydrochloric acid kuti ipange HPMC.

Chotsatira cha HPMC chopangidwa ndi polima chosungunuka m'madzi, chosakhala ndi ionic chomwe chili ndi zinthu zambiri zothandiza, monga kusungirako madzi ambiri, luso lopanga mafilimu, komanso kukhuthala komanso kukhazikika. Katunduwa amapangitsa HPMC kukhala chowonjezera chofunikira pamagwiritsidwe osiyanasiyana, monga zida zomangira, mankhwala, ndi zakudya.

Ngakhale HPMC imachokera ku mapadi, ndi polima yopanga yomwe imapangidwa kudzera munjira yovuta.